Adversary Intelligence — 2026-04-23

Metropolitan Police probe whether Harakat Ashab al-Yamin al-Islamia arson wave is IRGC criminal-proxy operation; 25 total arrests

The UK Metropolitan Police is investigating whether a wave of arson attacks on Jewish sites and Persian-language media in London, claimed by Harakat Ashab al-Yamin al-Islamia, is an IRGC criminal-proxy operation, Jerusalem Post, NPR, and CNN reported this week. UK counter-terrorism officers made two further arrests on April 22-23, bringing the total to 25 across six attacks, Jerusalem Post said. Deputy Assistant Commissioner Vicki Evans: 'One of our key lines of inquiry is whether criminal proxies are being used to commit any of these arsons.' Harakat Ashab al-Yamin al-Islamia had not previously been in Western threat databases; Israeli officials describe it as a suspected Iranian-proxy flag of convenience.

Analysis
The Met's working hypothesis, IRGC sub-contracting to UK petty criminals under a flag-of-convenience brand, corroborated across Jerusalem Post, NPR, and CNN, fits the pattern UK authorities documented from 2024 onward in assassination and intimidation plots against dissidents on British soil. The 25-arrest caseload across six attacks in roughly two weeks is unusually dense for a single counter-terrorism command, and arrest pace will probably slow as investigators shift from rapid plot-disruption to charging decisions carrying higher evidence thresholds. A formal UK proscription of Harakat Ashab al-Yamin al-Islamia or a related shell is unlikely within six months, even as the arrest cluster hands the Home Office a legal framework reusable against future IRGC proxy brands. Harakat Ashab al-Yamin may instead be a genuinely independent jihadist micro-cell posturing as Iranian-directed to amplify deterrence and press coverage, a possibility the Met has publicly flagged and one the absence of confirmed handler visibility would support.

2 sources